CN205279113U - Pulse shock wave is pulse jar for soot blower - Google Patents

Abstract

The utility model relates to a pulse shock wave is pulse jar for soot blower, this pulse jar are used for making the combustible gas mixture body to form detonation in order to produce the sound wave in the jar, and wherein this pulse jar includes: the jar body, insert the entry pipeline section of the entry end of the jar body, the jar internal with the mixed diffusion of gases device of the coaxial setting of entry pipeline section, diffusion equipment is obtuse taper surface for opening the angle, diffusion equipment's low reaches along jar grid board that two rows of air feed of body axial arrangement were personally experienced sth. Part of the body and are passed through, be connected to a plurality of annular orifices of adjacent grid inter -plate, be connected to jar export pipeline section of body exit end. The basis is novel can to realize the intensive mixing of mist in the pulse jar to form detonation in order to produce the sound wave in the jar. Be equipped with the online deashing that this neotype pulse jar can be applicable to petrochemical industry electric power industry.

Description

A kind of pulse shock wave soot blower Impulsive tank

Technical field

Basis is novel relates to a kind of pulse shock wave soot blower Impulsive tank.

Background technology

Pulse shock wave soot blower is that the shock wave that the mixing gas ignition ignition by fuel gas and combustion-supporting gas being mixed to form generates carrys out soot blowing. Mixing gas ignited device in a special device that fuel gas (is generally adopted the combustible gaseous fuel such as acetylene, natural gas or propane) and combustion-supporting gas (being generally adopted compression combustion-supporting gas) is mixed to form is lighted, enter pulse shock wave to generate in tank through detonation generation shock wave, the pulse shock wave modulated ejects from spout, shake with the form of shock wave, clash into and wash away heating surface, reach the purpose of soot blowing.

In prior art, fuel gas forms burning, detonation or detonation with combustion-supporting gas in in-tank mixing after igniting. Burning refers to that fuel gas mixes after igniting with combustion-supporting gas, it does not have producing acceleration, burning velocity is slow, will not form shock wave; If obstructing structure before flame, obstruct structure to the obstruction of flame little time, also can produce flame acceleration degree, form the shock wave that energy is small and weak, here it is the detonation of fuel gas; If have big obstruction before flame, the shock wave that acceleration is very big, energy is very big will be produced, here it is the detonation of fuel gas. Although some pulse shock waves generate tank and also are able to formation detonation in prior art, but run into fuel gas when not being made up of single component, tend not to form detonation, generally can form detonation, even can only produce burning, it is impossible to adapt to current boiler or the requirement of heating furnace soot blowing.

Utility model content

This is novel is to solve the above-mentioned problems in the prior art at least in part, it is proposed to a kind of pulse shock wave soot blower Impulsive tank that can stably form detonation.

According to the aspect that this is novel, it is provided that a kind of pulse shock wave soot blower Impulsive tank, this Impulsive tank is used for making burning mixture form detonation in tank to produce sound wave, and wherein this Impulsive tank includes: be formed as the tank body of cylindrical tube shape structure; Being inserted into the entrance pipeline section of the arrival end of described tank body, described entrance pipeline section is connected to external mix gas source by adpting flange; The mixing gas diffuser being coaxially disposed with described entrance pipeline section in tank body, described disperser is open angle is the taper surface at obtuse angle, and the external diameter of described taper surface is less than the internal diameter of described tank body, and is provided with multiple through hole on described taper surface; Arrange, along tank body axially-aligned two, the flase floor that supplied gas is passed through in the downstream of described disperser; Being connected to the multiple annular oriffices between adjacent grid plate, the internal diameter of described annular oriffice is the 30%-40% of tank body internal diameter, and the external diameter of described annular oriffice is tank body internal diameter 95%, the plurality of annular oriffice interval is arranged in the downstream of described disperser; Being connected to the outlet pipe section of tank outlet end, described outlet pipe section is connected to the acoustic waveguide tube of described soot blower.

Preferably, described annular oriffice is 2.

Preferably, the obtuse angle of described taper surface is 120 degree to 150 degree.

Preferably, it is provided with multiple installed part at the outer weekly interval of described tank body.

Preferably, described outlet pipe section is the bend pipe in 90 degree of bendings.

Novel according to this, provide a kind of pulse shock wave soot blower Impulsive tank, the disperser for stopping mixing gas it is provided with in this Impulsive tank, it is provided with in tank body simultaneously and multiple makes the well-mixed device of mixing gas, if at this time having flame through out-of-date, before flame, existing relatively larger obstruction, has again well-mixed gas, the condition producing detonation all possesses, and what go out from pulse shock wave spout must be just the shock wave of powerful energy. Under this configuration, tank interior does not have dead space, without the consumption problem that there is energy, simultaneously without the problem producing " double-bang firecracker ". In use, the speed of the shock wave that Impulsive tank exports away is more than 6 Mach to the maximum to this novel Impulsive tank, and energy is up to 1.6MPa. This novel surge tank shock wave energy is big, is especially suitable for removing the fouling on heating surface or viscous ash deposit.

Accompanying drawing explanation

Below in conjunction with in the accompanying drawing description to this novel exemplary embodiment, this novel above-mentioned and other side will become apparent from and is easier to understand, in the accompanying drawings:

Fig. 1 is the outline drawing of an embodiment of this novel pulse shock wave soot blower Impulsive tank;

Fig. 2 is the sectional view of an embodiment of this novel pulse shock wave soot blower Impulsive tank.

Detailed description of the invention

Referring to accompanying drawing, the preferred implementation that this is novel is illustrated. It should be noted that term used herein " on ", D score, "front", "rear", "left", "right" and similar statement for illustrative purposes only, and unrestricted. In various figures, identical element adopts same or like accompanying drawing labelling to represent. For the sake of clarity, the various piece in accompanying drawing is not to scale.

Fig. 1-2 schematically depict a kind of pulse shock wave soot blower Impulsive tank novel according to this. This Impulsive tank is used for making burning mixture form detonation in tank to produce sound wave, wherein this burning mixture is mixed according to certain ratio by combustible gas and combustion-supporting gas, combustible gas is preferably but not limited to as combustible gaseous fuel such as acetylene, natural gas or propane, and combustion-supporting gas is preferably but not limited to as oxygen or compression air, combustible gas and combustion-supporting gas can be sufficiently mixed according to the ratio of stoichiometric ratio. Wherein this Impulsive tank includes: being formed as the tank body 1 of cylindrical tube shape structure, the diameter of this tank body is preferably but not limited to as 80-100 centimetre, and interval is provided with multiple installation portion on tank body, and described installation portion is for example and without limitation to mounting plate. At the entrance pipeline section of the arrival end of tank body 1, this entrance pipeline section is connected to external mix gas source by adpting flange, and mixing gas flows into tank body 1 according to the direction of arrow A as depicted; Being coaxially arranged with entrance pipeline section in tank body 1 and mix gas diffuser 2, this disperser 2 is the taper surface at obtuse angle for open angle, and wherein the angular range at this obtuse angle is 120 to 150 degree. The external diameter of this taper surface is less than the internal diameter of tank body, so that gaseous mixture body can flow through the outer end of taper surface and walk around taper surface and flow to the rear portion of taper surface. This taper surface 2 is provided with multiple through hole; Arranging, along tank body axially-aligned two, the flase floor 4 that supplied gas is passed through in the downstream of taper surface 2, this flase floor is preferably but not limited to as the flase floor with multiple laterally or longitudinally gaps, can flow mixing with supplied gas between flase floor 4. Further comprise the multiple annular oriffices 3 being such as connected between adjacent grid plate 4 by the mode welded, being preferably but not limited to is 2 annular oriffices, the internal diameter of this annular oriffice 3 is the 30%-40% of tank body internal diameter, and the external diameter of annular oriffice 3 is tank body internal diameter 95%, multiple annular oriffice 3 intervals are arranged in the downstream of taper surface 2, and mixing gas realizes further mixing after flowing through this annular oriffice 3. It is also associated with outlet pipe section at tank outlet end, the sound wave produced in Impulsive tank is propagated along the trip downwardly of arrow B, this outlet pipe section is the bend pipe in 90 degree of bendings, outlet pipe section is connected to the acoustic waveguide tube of soot blower, effect through this acoustic waveguide tube, the sound intensity of sound wave can be amplified further, to increase soot blowing effect.

Operating process below in conjunction with the accompanying drawing 1-2 acoustic wave ash ejector to having above-mentioned structure is described.

During use, first this Impulsive tank is connected by mounting flange alignment with outside hybrid gas source. After position adjustment is good, it is possible to realize the installation to tank body further by the installing plate on tank body and position. External mix gas source is directed in Impulsive tank by entrance pipeline section, and this air-flow directly guides to the taper surface 2 as disperser, the air-flow of a portion enters into the back side of taper surface by the gap between taper surface external diameter end and tank body, the air-flow of another part enters into the back side of taper surface via the through hole on taper surface, two strands of air-flows form turbulent flow at the back side place of taper surface so that mixing gas is again sufficiently mixed in tank. Mixed gas progressively pushes the flase floor and the annular oriffice that set gradually under the effect of the pressure to, is sufficiently mixed further so that be filled with well-mixed mixing gas in tank interior under the effect of above-mentioned tank inner part. Under the effect of outside igniter, mixing gas in tank body is ignited, this flame front is first via taper surface, the mixing gas that the taper surface back side has mixed cmpletely is lighted after then passing around taper surface, make all regions of tank interior can both fully vigorous combustion to form detonation, after tested, adopt this type surge tank, the speed making the shock wave that Impulsive tank exports away is more than 6 Mach to the maximum, energy is up to 1.6MPa, it is especially suitable for removing the fouling on heating surface or viscous ash deposit, it is possible to suitable in the online ash removal of petrochemical industry power industry.

Unless otherwise defined, the implication that the those skilled in the art that technology used herein is novel with scientific terminology and this are generally understood that is identical. Term used herein is intended merely to and describes concrete enforcement purpose, it is not intended that restriction is originally novel. Terms such as herein presented such as " parts " both can represent single part, it is also possible to represents the combination of multiple part. Herein presented term such as such as " installation ", " setting " etc. both can represent that parts were attached directly to another parts, it is also possible to represents that parts are attached to another parts by middleware. The feature described in one embodiment herein can individually or be applied to another embodiment in combination with further feature, unless this feature is inapplicable or be otherwise noted in this another embodiment.

Basis is novel to be illustrated already by above-mentioned embodiment, but it is to be understood that, above-mentioned embodiment is only intended to citing and descriptive purpose, and is not intended to be limited to originally novel within the scope of described embodiment. It will be appreciated by persons skilled in the art that and can also make more kinds of variants and modifications according to this novel instruction, within these variants and modifications all fall within this novel scope required for protection.

Claims (5)

1. a pulse shock wave soot blower Impulsive tank, this Impulsive tank is used for making burning mixture form detonation in tank to produce sound wave, it is characterised in that this Impulsive tank includes: be formed as the tank body of cylindrical tube shape structure; Being inserted into the entrance pipeline section of the arrival end of described tank body, described entrance pipeline section is connected to external mix gas source by adpting flange; The mixing gas diffuser being coaxially disposed with described entrance pipeline section in tank body, described disperser is open angle is the taper surface at obtuse angle, and the external diameter of described taper surface is less than the internal diameter of described tank body, and is provided with multiple through hole on described taper surface; Arrange, along tank body axially-aligned two, the flase floor that supplied gas is passed through in the downstream of described disperser; Being connected to the multiple annular oriffices between adjacent grid plate, the internal diameter of described annular oriffice is the 30%-40% of tank body internal diameter, and the external diameter of described annular oriffice is tank body internal diameter 95%, the plurality of annular oriffice interval is arranged in the downstream of described disperser; Being connected to the outlet pipe section of tank outlet end, described outlet pipe section is connected to the acoustic waveguide tube of described soot blower.

2. Impulsive tank as claimed in claim 1, it is characterised in that described annular oriffice is 2.

3. Impulsive tank as claimed in claim 1, it is characterised in that the obtuse angle of described taper surface is 120 degree to 150 degree.

4. Impulsive tank as claimed in claim 1, it is characterised in that be provided with multiple installed part at the outer weekly interval of described tank body.

5. Impulsive tank as claimed in claim 1, it is characterised in that described outlet pipe section is the bend pipe in 90 degree of bendings.